package com.example.getbetterylevel;
import java.io.IOException;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.AssetFileDescriptor;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.widget.ProgressBar;
import android.widget.TextView;
public class MainActivity extends Activity {
private BroadcastReceiver mbcr = new BroadcastReceiver() {
// onReceive method will receive updates
public void onReceive(Context c, Intent i) {
// initially level has 0 value
// after getting update from broadcast receiver
// it will change and give battery status
int level = i.getIntExtra("level", 0);
// initialize all objects
ProgressBar pb = (ProgressBar) findViewById(R.id.progressBar1);
TextView tv = (TextView) findViewById(R.id.textView1);
// set level of progress bar
pb.setProgress(level);
// display level on text view
tv.setText("Batterylevel:" + Integer.toString(level) + "%");
// start a song when the battery level touches 100%
if (level == 100) {
//do something on bettery full charged
}
}
};
/** Called when the activity is first created. */
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// set layout
setContentView(R.layout.activity_main);
// register broadcast receiver
// Get battery changed status
// we can get more options like power connect, disconnect, call, etc.
// To get more options, write Intent followed by a dot(.) and press
// CTRL+Space
// you will get all the options
registerReceiver(mbcr, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text=""
android:textSize="25sp" />
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleHorizontal"
android:progressDrawable="@drawable/progressbar2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:minHeight="100dp"
android:minWidth="200dp" />
</LinearLayout>
drawable->progressbar2.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="@android:id/background">
<shape>
<corners android:radius="5dip" />
<gradient
android:angle="270"
android:centerColor="#ff5a5d5a"
android:centerY="0.5"
android:endColor="#ff747674"
android:startColor="#ff9d9e9d" />
</shape>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="5dip" />
<gradient
android:angle="0"
android:endColor="#ff009900"
android:startColor="#ff000099" />
</shape>
</clip>
</item>
</layer-list>
